NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan
55th Japan National Congress for Theoretical and Applied Mechanics
Session ID : 1B02
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OS18-1
Analysis of thermal environment in urban area by stabilized finite element method
*show ItabashiKazuo Kashiyama
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Abstract
It is very important to estimate the heat island phenomenon in the urban area and the effect of the measures taken for the reduction of the phenomenon. In this type of numerical simulation, it is important to express the shape of geographical features and the buildings accurately. The finite element method, which can treat the arbitrary shape easily, is one of the best methods to investigate these things.
This paper presents a numerical method for thermal environment in urban area by stabilized finite element method. The incompressible k-e type 2-equation model based on RANS is used for the basic equation of a flow field analysis. The stabilization finite element method based on the SUPG/PSPG method is used for the special discretization method. The vegetation canopy model is employed to consider the effect of vegetation. The validity of this numerical method is investigated through the numerical analysis example.
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© 2006 Committee for Mechanics and Structure,Science Council
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